How many terms of the series 3, 9, 27 …. Will add up to 363?
5
6
7
8
The sum of n terms of two arithmetic series are in the ratio of 3n + 1: 2n + 1.What is the ratio of their 9th terms?
35/52
14/27
31/45
52/35
Directions: In these questions, a series is given which may consist of number, alphabets or a mixture of both. You have to identify from the choices given against each question, the next term in the series.
6, 13, 28, 59?
111
122
113
114
Directions: In these questions, a series is given which may consist of number, alphabets or a mixture of both. You have to identify from the choices given against each question, the next term in the series.
QPO, SRQ, UTS, WVU?
XYZ
ZYA
YXW
VWX
Directions: In these questions, a series is given which may consist of number, alphabets or a mixture of both. You have to identify from the choices given against each question, the next term in the series.
1.5.13.25.41
61
57
51
63
If x, y, z are in geometric progression and the expression
xb – c y c – a z a – b is equal to 1, then a, b and c are in:
Geometric progression
Arithmetic progression
Harmonic progression
None of the above
The sum of six terms of an arithmetic progression is 9 and the sum of the first 9 terms is 6. the sum of the first fifteen terms will be:
- 6
- 15
3
- 3
If x < 1, the sum of the series 1 + 2x + 3x2+ 4x3 + ….. to infinity is:
1 / (1 – x)
1/ (1 – x)2
½
2/ (1 – x )
Find the next term in the given series in each of these questions.
6, 9, 7, 10, 8, 11, ….
12
13
9
14
If the second term of a geometric progression is 2 and the sum of the series to infinity is 8, then the first term is :
5
2
4
1